Drying machine



Jan. 1, 924 1,479,626

0. G. PFEIFFER DRYING MACHINE Filed June 12, 1920 2 Sheets-Sheet 1 Jan. 1, 1924 y I 1,479,626

c. G. PFEIFFER DRYING MACHINE Filed June l2, 1920 2 Sheets-Sheet 2 naturally inclined to do.

Patented J an. l, 1924.

UNITED ST T E S CARL G. PFEIFFER, OF PEEKSKILL NEW YORK.

DRYING MACHINE.

Application filed. June 12, 1920. Serial No. 388,479.

To all whom it may concern:

Be it known that I, CARL G. PFEIFFER, citizen of the United States, and resident of Peekskill, in the county of Westchester and State of New York, have invented a certain new and useful Drying Machine, of which the following is a specification.

This invention relates to the making of beads and has for its object the provision of means for drying the lacquers that are applied to the articles during the processes of manufacture. The object is attained by the means set forth in this specification. The formed head, of glass or other material, is treated to successive coats of lacquers, each coating having to be dried before the application of another coating. It is important that the drying be accomplished without the coating running off or gathering to one side of the bead, as it is Accordingly the means to be described are designed to efiect a uniform distribution of the lacquers all over the bead during the process of drying, which consists in keeping the bead in constant rotation and motion until the drying is complete.

Referring to the accompanying drawings, Fig. 1 is a plan of the drying machine. Fig. 2 is a'side elevation of the machine. Fig. 3 is an elevation of the left hand end of the machine. Fig. 4 is a transverse section of the machine through the lines B in Figs. 1 and 2. Figs. 5 and 6 are detail views of axle parts. Fig. 7 is a transverse section through the line C, Fig. 1. Fig; 8 is a plan of the pads on which the beads are carried. Fig. 9 is an explanatory detail of the adjustable end of the upper guide frame. Fig. 10 is an explanatory detail of the ad justableend of the track for the pads.

Figs. 1 and '2 show the end of a structure that is in practice about twenty feet long between the parts of the figures, the parts omitted being precisely a continuation of the inner end portions of the two figures that are shown in transverse {section in Fig. 4. The drawings are upon a scale of Due-eighth of the actual size. The machine is mounted upon a table, 1, any convenient elevation from the floor, and comprises a horizontally moving belt, pad axles attached to the belt, pads for holding the beads the pads carried on said axles, a track in which the pads travel, and Stop guiding frame for the'pad's, p

Flanged pulleys are supported horizontally in standards 7 and 3, Figs. 2, 3 and 4. The pulley 66 is rotated by means of a worm gear wheel 23 and pinion 24, Figs. 1, 2 and 3, the pinion driven by a pulley 25 and belt 26, Figs. 1 2 3. A leather belt 5 connects the two pulleys a and a. Upon the belt at suitable intervals arepad axles, shown in enlarged detail in Figs. 5 and 6. It comprises two parts, a slotted part or hub 0 that has a flange 0 perforated as at 0 for belt rivets, by means of which it is fastened to the belt, and the axle part a that has a flatted head a fitted to the slot in the hub. A rivet c constitutes a pivot on which the axle swings upwards, as in Figs. 7 and 3, but is held normally in a horizontal position by the square shoulder 0 the upper corner of the head being chamfered to a radius with the pivot.

A frame work is erected around the pulleys and the belt. The beads to be handled are placed on the ends of wires, and the wires are set in holes in a circular block or pad, a plan of which is given in Fig. 8. It is a plain circular block of wood, a half to three-quarters of an inch in thickness, with a hole 12 in the center to receive the axle e, and is made usually to hold about one hundred pins, the pins insertible in small holes in the block, as in Figs. 7 and 8. A pad A is shown in place in the machine in Fig. 4 The pads are placed on the axles e and are carried along by the belt, the posi tions of the pads in relation to the frame work being shown at A, Fig. 4, and by broken lines to avoid confusion, in Figs. 2 and 3, and at the moment of discharge from the machine in Fig. 7

The pads travel in a track provided in the frame f that is supported on the table 1 by stands 2, 4, and r, shown particularly in Figs. 2 and 4. The frame is constructed to form a groove or track 2', Figs. 1, 2, 3, 4

and 10, that follows the contour of the belt v belt except an opening in front to admit of the passage of the axle hubs 0. This trains is supported upon extensions u of the standards 4, Fig. 4E.

A "frame g g is supported above the belt frame by brackets m attached to the standards 4, Figs. 1, 2, 3 and 4, a distance above the lower track enough higher than the diameter of the pads to'prevent contact with the periphery of the pads. This frame, seen in cross-section in Fig. 4,, is made in two parts, the outer part wider than the inner toaflord the flange 9, Figs. 3 and l, which constitutes a guide for the tops of the pads in their travel. No flange is needed behind the pads as the hub of the axle will prevent the pads leaning too "far in that direction. The pads are placed on the axles and in the track at the left hand end of the machine, at 21, Figs. 1, 2 and 3.

On the opposite side, at the same end ot the machine, the pad track and upper guide assume. f rm t automati al y d s arg the pads from the machine. A brace h, Figs. 1,2.1 d3, attac t g de a d, d to the post 7 rigidly maintains those points proper relational distances. The guide 9, at the point 41 merges into a crooked arm Z that is, attached at its forward end to the post 1;, and to the guide 9 at the point 42.

The track frame f from the point 40, Fig. Widens and assumes an angularity as if its inner edgev were twisted upwards towards and to. meet thepad axles, and gradually elevated to its terminal, as shown in Figs. 1, 3. and 7.. The outside guide 7" recedes to a larger radius somewhat eccentric to the pulley at, diverging as it approaches the end of the machine, and gradually sloping upwards, asv at i, Fig. 3. The inner edge 13 of the track also, gradually rises so that the pad axles impinge against it and are lifted by it.v As the pad reaches the diverging guide at the point 4.0 the flange n on the arm Z, see Fig. 3, causes the pad to lean inwardly, and the combined efiects of the drawing-in flange n, the. diverging and sloping guide and the sloping path 71, with the lifting of the axle 6, brings the pad into the position shown in Fig. 7, where the axle separates from the pad, the pad slides down on the chute 22, Fig. 3, and the axle drops from the track point 14 and assumes its normal position as. shown in broken lines in 6 The end of the sloping track is secured to the post r r, as at i.

A running belt, particularly of a narrowness and length of the one employed, is liable to stretch, so. that provision is made for taking up belt slackness, and to adjust the frame accordingly. The pulley 05- has its bearing in the standard 3., and as shown particularly in Figs. 2 and 9, the standard is adjustable in the direction of the length of th t by m of he s ots 8. .intlie base details.

of the standard and the fastening bolt 8.

The guide frame 9 is extensible at the pulley at end by these adjustable parts: The frame is made of two strips, 9 Fig. 4, that are particularly set forth in Fig. 9, the parts being numbered for clearness of the The segment 22 has extensions 19 and the flange 9 on the segment can be integral with the body of the segment. The inner rail 17 of the frame in the figure has the flange 5 added to it by the wider strip 16, secured to the rail 17. The segment end is held between the strips 16, and is secured to them by means of the bolts 20 21. As shown in Fig. 2, slots 8 through the strip admit of the extension of the segment as in Fig. 9. The ends of the strips as extended at 18 and the finish of the corners p are for the purpose of symmetry in the construct me The corresponding ends of the track frame 7 supported on standards 2, Fig. 2, are sepa bl and ex e s b e lik th pp r f men Fig- .0- y ans of lo 2 n the s n ar s, she n br ke i s, s idabl 011. he faste ing elts 2A, ie- The rubbe r k. a b mad to b idg he sp e y th n er io o a Piece o ubber a at 26. i t spa e bec mes gr at no gh to require it. v

h s a h n is usedin a a m oom fre from dust. The pads, filled with beads to be dried placed in the machine are kept in ns an mot o n r ta o and. the obje t sought is admirably accomplished. The simple rotation of the pads would not be so e ective as t dou e mot-i n. g ven to them Which moves them through a constantly changing atmosphere, whereas simply rotating the pads tends to. create only an eddying current of air within narrow limits, being less effective, and the beads near the center of the pad deriving little benefit therefrom.

Having described the invention, what I 9 m a d de e to 9 1 7 y L tte s at nt, 1s

1. In a driving machine the combination of a table, pulley shaft standards near the ends of the table, pulley bearings on said standard, horizontal pulleys, supported in said bearings, means for driving one of the pulleys, a belt carried by the pulleys edgewise with relation to the table, a grooved guide-path adjacent to the lower edge of the belt from a given starting point to a point of delivery, a grooved guide above the top edge of the said belt parallelling the pat e w he b t to near the P in of de e y, hing P ca ri rs on he l theuter flang o th guide-Path n ar th r ntef el er-y d e ging fr t e. b lt th inne dge of. sa d. guid -pa h. gr dually dierging nd. rising t0 te m. a shr ne sur ae to the outer flange, and to, engage with the hinged carrier to elevate the carrier from its horizontal course, the upper guide converging towards the pulley in correspondence with the divergence of the guide-path, and a sudden break in said elevation to cause the dropping of the carrier to normal.

2. In combination with drying pads, pivoted axles for supporting and carrying the pads, the axles attached to an endless belt driven upon horizontal pulleys, means for driving one of the pulleys, a guide-path be low the belt in which the pads travel, the traversing causing the pads to revolve, a groove above the belt as a guide to the top of the pads, the guide-path diverging and the upper guide converging near the point of delivery, the guide-path merging into an inclined plane, the inner edge of the plane lifting the carrier to separate it from the pad.

3. In a drying machine as described, embodying an endless horizontal belt, pad carriers on the belt, a guide-path and a guide adjacent to the belt to guide and to cause a rollin of the pads, the guide-path widening anoI diverging from the belt near the point of pad delivery, the inner edge of the guide-path gradually rising to meet and lift the carrier axle and to form a sloping surface to draw the pad from its carrier.

4. The combination in a drying machine as described, embodying an endless horizontal belt, pad carriers on the belt, a guide and a guide-path adjacent to the belt to guide and cause a rolling of the pad, of the guide-path widening and diverging near the point of pad delivery, the upper guide converging towards the belt in correspondence with the diverging of the guide-path, the inner end of the guide-path gradually rising to meet and lift the carrier axle and to form a sloping surface to the outer flange of the guide-path.

5. In a drying machine as described, means for carrying the drier pads comprising a slotted hub, a base to the hub forattachment to the carrier belt, an axle, a hub on the axle to fit in the slot in the hub, a pivot through the hub and the axle head, the upper corner of the axle head chamfered away to a radius with the pivot.

6. In a drying machine as described, embodying an endless horizontal belt driven upon horizontal pulleys, with guides above and below the belt, means for tightening the belt and adapting the guides thereto, comprising slots in the base of the forward pulley whereby the base in slidable upon its foundation, and extensible means upon the top guide comprising a separable half-circular end of' the frame with arms extended tangentially with the frame, with flange parts on the main frame extended to embrace said arms, slots through the said arms and extensions, and fastening bolts through the slots.

CARL G. PFEIFFER. 

